jtrack

The idea

I got tired of opening the same careers pages to see if anything new dropped. jtrack fetches the public ATS feeds, compares them to yesterday’s snapshot, and prints the delta. It also helps visualize the pace in which companies are opening or closing roles.

How it works

API-first. Greenhouse and Ashby adapters, one company at a time or all of them. Each run writes data/latest.json plus a dated snapshot. --list reads the snapshot and stays offline.

The useful part is the diff. Same job id in both snapshots is noise. Everything else is what I actually wanted to see.

export function diffJobs(previous: Job[], current: Job[]): DiffResult {
  const prevById = new Map(previous.map((job) => [job.id, job]));
  const currById = new Map(current.map((job) => [job.id, job]));

  const added: Job[] = [];
  const removed: Job[] = [];
  const unchanged: Job[] = [];

  for (const [id, job] of currById) {
    if (prevById.has(id)) unchanged.push(job);
    else added.push(job);
  }

  for (const [id, job] of prevById) {
    if (!currById.has(id)) removed.push(job);
  }

  const byTitle = (a: Job, b: Job) => a.title.localeCompare(b.title);
  added.sort(byTitle);
  removed.sort(byTitle);
  unchanged.sort(byTitle);

  return { added, removed, unchanged };
}

Playwright for boards with no public feed is still a later idea, not a promise.

Current state

Active on this machine. No public repo yet. Add a company by wrapping the existing fetch helpers and registering the adapter.